Courtney is a 2016 graduate of Wantagh High School. She is the daughter of Patty and Lou Gendels.

Junior year...Named First Team All-Skyline...Appeared in all 19 games, with 18 starts...Led the team in goals (61), points (76), shots (97), game-winning goals (3) and free position goals (16) and ranked second in assists (15)...Finished third in the conference in goals, fifth for points and seventh in assists...In the NCAA, ranked 67th in free-position percentage (.571) and 84th for goals.

Sophomore year...Named First Team All-Conference...Played in 15 games (14 starts)...Led the team in goals (42), man-down goals (1) and shots (74), ranked second in points (48), third in game-winning goals (1) and ground balls (23), fourth in caused turnovers (15) and fifth in both assists (6) and draw controls (20)...In the Skyline, ranked ninth in goals and 10th for goals per game (2.80).